These "Rader" wheels first appeared in the mid 1960's and were produced by Mickey Thompson, Rader and many other companies. Similar to the Cragar S/S, these wheels were used on show cars, drag cars, low riders and street cars. Raders came in many different variants, depending on the manufacturer and version. These are the Mickey Thompson brand early version, which had only rib. A later version had 3 ribs, and was made famous on the 1966 Batmobile.